the mordant in the gram stain procedure is
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. In the Gram Stain procedure, which component acts as the mordant?

Correct answer: C

Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.

2. Which of the following is NOT an acceptable abbreviation?

Correct answer: A

Rationale: The correct answer is A: D/C. D/C is not an acceptable abbreviation as it can be easily confused with both 'discharge' and 'discontinue.' The abbreviations 'tid' (three times a day), 'bid' (twice a day), and 'qid' (four times a day) are commonly used in medical contexts to indicate dosing frequencies and are widely accepted in healthcare settings.

3. Before allowing the client's infant granddaughter to visit before the client's scheduled heart transplant, the nurse decides it would be beneficial to collaborate with which of the following? Select all that apply.

Correct answer: B

Rationale: Collaborating with the client and family is crucial as it fosters a sense of autonomy and active involvement in the healthcare process for the client. Involving other nursing staff ensures the successful implementation of the planned intervention and provides support for the client's needs. Collaboration with the security department or hospital administration is not necessary in this situation, as the focus should be on the client's well-being and family involvement during a sensitive time.

4. On admission to the psychiatric unit, the client is trembling and appears fearful. The nurse's initial response should be to:

Correct answer: B

Rationale: Anxiety is triggered by change that threatens the individual's sense of security. In response to anxiety in clients, the nurse should remain calm, minimize stimuli, and move the client to a calmer, more secure/safe setting. The correct initial response is to introduce the client and accompany them to their room. This approach helps the client feel oriented, safe, and supported. Giving orientation materials or reviewing rules and regulations may overwhelm the client further. Taking the client to the day room and introducing them to other clients could increase anxiety by exposing them to unfamiliar faces. Asking the nursing assistant to get vital signs and complete admission tasks can wait until the client feels more settled and secure in their environment.

5. The healthcare professional is preparing to percuss the abdomen of a patient. What characteristic of the underlying tissue does percussion assess?

Correct answer: C

Rationale: Percussion is a technique used to assess the density of underlying organs by producing sounds that help determine their location and size. Turgor, texture, and consistency are primarily assessed through palpation, not percussion. Turgor refers to skin elasticity, texture pertains to the feel of the tissue surface, and consistency relates to the firmness or resistance of the tissue.

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